JP2016538756A5 - Decryption method - Google Patents
Decryption method Download PDFInfo
- Publication number
- JP2016538756A5 JP2016538756A5 JP2016521795A JP2016521795A JP2016538756A5 JP 2016538756 A5 JP2016538756 A5 JP 2016538756A5 JP 2016521795 A JP2016521795 A JP 2016521795A JP 2016521795 A JP2016521795 A JP 2016521795A JP 2016538756 A5 JP2016538756 A5 JP 2016538756A5
- Authority
- JP
- Japan
- Prior art keywords
- rate
- bit
- current picture
- decoding
- layer set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002123 temporal effect Effects 0.000 claims 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-M picrate anion Chemical compound [O-]C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-M 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Description
図５０に示されるＶＰＳＶＵＩにおけるビットレートおよびピクチャレート情報のシグナリングの修正は、同一のサブセットに対する情報を送るためにビットを無駄にしないという利益を有する。図５０において、ビットレートおよびピクチャレート情報（ｂｉｔ＿ｒａｔｅ＿ｐｒｅｓｅｎｔ＿ｆｌａｇ［ｉ］［ｊ］、ｐｉｃ＿ｒａｔｅ＿ｐｒｅｓｅｎｔ＿ｆｌａｇ［ｉ］［ｊ］、ａｖｇ＿ｂｉｔ＿ｒａｔｅ［ｉ］［ｊ］、ｍａｘ＿ｂｉｔ＿ｒａｔｅ［ｉ］［ｊ］、ｃｏｎｓｔａｎｔ＿ｐｉｃ＿ｒａｔｅ＿ｉｄｃ［ｉ］［ｊ］、ａｖ
ｇ＿ｐｉｃ＿ｒａｔｅ［ｉ］［ｊ］を含む）は、対応するレイヤセットにおける最大時間サブレイヤまでしかシグナリングされない。よって、対応するレイヤセットにおける最大時間サブレイヤまでしかサブセットに対するビットレートおよびピクチャレート情報をシグナリングしないことが好ましい。
The modification of bit rate and picture rate information signaling in the VPSV UI shown in FIG. 50 has the benefit of not wasting bits to send information for the same subset. In Figure 50, the bit rate and the picture rate information (bit_rate_present_flag [i] [j] , pic_rate_present_flag [i] [j], avg_bit_rate [i] [j], max_bit_ r ate [i] [j], constant_pic_rate_idc [i] [ j], av
g_pic_rate [i] [j]) is only signaled up to the maximum time sublayer in the corresponding layer set. Therefore, it is preferable to signal the bit rate and picture rate information for the subset only up to the maximum time sublayer in the corresponding layer set.
ｂｉｔ＿ｒａｔｅ＿ｐｒｅｓｅｎｔ＿ｆｌａｇ［ｉ］［ｊ］が１に等しいことは、ｉ番目のレイヤセットのｊ番目のサブセットに対するビットレート情報が存在することを示す。ｂｉｔ＿ｒａｔｅ＿ｐｒｅｓｅｎｔ＿ｆｌａｇ［ｉ］［ｊ］が０に等しいことは、ｉ番目のレイヤセットのｊ番目のサブセットに対するビットレート情報が存在しないことを示す。サブビットストリーム抽出プロセスが、入力としてのレイヤセットｊおよびそのレイヤセットに関連するレイヤ識別子リストによって呼び出されるとき、サブビットストリーム抽出プロセスの出力はレイヤセットのｊ番目のサブセットである。存在しないとき、ｂｉｔ＿ｒａｔｅ＿ｐｒｅｓｅｎｔ＿ｆｌａｇ［ｉ］［ｊ］の値は０に等しいと推測される。
bit_rate_present_flag [i] [j] being equal to 1 indicates that there is bit rate information for the j-th subset of the i-th layer set. bit_rate_present_flag [i] [j] equal to 0 indicates that there is no bit rate information for the j-th subset of the i-th layer set. When the sub-bitstream extraction process is invoked with layer set j as input and the layer identifier list associated with that layer set, the output of the sub-bitstream extraction process is the jth subset of the layer set. When not present, the value of bit_rate_present_flag [i] [j] is assumed to be equal to 0.
ａｖｇ＿ｐｉｃ＿ｒａｔｅ［ｉ］は、レイヤセットのｉ番目のサブセットの、２５６秒当りのピクチャの単位での平均ピクチャレートを示す。ａｕＴｏｔａｌはｉ番目のレイヤセットのｊ番目のサブセットにおけるアクセスユニットの数であり、ｔ１はＶＰＳが適用される第１のアクセスユニットの除去時間（秒）であり、ｔ２はＶＰＳが適用される（復号順で）最後のアクセスユニットの除去時間（秒）であるとき、以下が適用される。もしｔ１がｔ２に等しくなければ、次の条件が真となる。 avg_pic_rate [i] indicates the average picture rate in units of pictures per 256 seconds of the i- th subset of the layer set. auTotal is the number of access units in the j-th subset of the i-th layer set, t 1 is the removal time (seconds) of the first access unit to which the VPS is applied, and t 2 is the VPS is applied When it is the removal time (in seconds) of the last access unit (in decoding order), the following applies: If not equal t 1 is the t 2, the following conditions are true.
Claims (1)
（ａ）複数の異なるレイヤを含む前記ビデオビットストリームを受信するステップであって、前記複数の異なるレイヤの少なくとも１つは複数の時間サブレイヤを含む、ステップと、
（ｂ）現ピクチャの参照レイヤの時間サブレイヤ最大値と前記現ピクチャの時間識別子とを比較し、アクティブ参照レイヤの数を計算することによって、前記ビデオビットストリームから前記現ピクチャを復号するステップと
を含む、復号方法。 A decoding method for decoding a video bitstream,
(A) receiving the video bitstream including a plurality of different layers, wherein at least one of the plurality of different layers includes a plurality of temporal sublayers;
(B) comparing the time identifiers time sublayer maximum value and the previous SL current picture of the current picture of the reference layer, by calculating the number of active reference layer, a step of decoding the current picture from the video bit stream Including a decoding method.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361889917P | 2013-10-11 | 2013-10-11 | |
| US61/889,917 | 2013-10-11 | ||
| US201361890308P | 2013-10-13 | 2013-10-13 | |
| US61/890,308 | 2013-10-13 | ||
| US201461953838P | 2014-03-15 | 2014-03-15 | |
| US61/953,838 | 2014-03-15 | ||
| PCT/JP2014/005206 WO2015052942A1 (en) | 2013-10-11 | 2014-10-14 | Signaling information for coding |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016538756A JP2016538756A (en) | 2016-12-08 |
| JP2016538756A5 true JP2016538756A5 (en) | 2017-11-09 |
| JP6472442B2 JP6472442B2 (en) | 2019-02-20 |
Family
ID=52812769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016521795A Expired - Fee Related JP6472442B2 (en) | 2013-10-11 | 2014-10-14 | Decryption method |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20160261878A1 (en) |
| EP (1) | EP3056005A4 (en) |
| JP (1) | JP6472442B2 (en) |
| CN (1) | CN105556975A (en) |
| HK (1) | HK1224468A1 (en) |
| WO (1) | WO2015052942A1 (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9756335B2 (en) | 2013-07-02 | 2017-09-05 | Qualcomm Incorporated | Optimizations on inter-layer prediction signalling for multi-layer video coding |
| WO2015053596A1 (en) * | 2013-10-12 | 2015-04-16 | 삼성전자 주식회사 | Method and apparatus for managing buffer for encoding and decoding multilayer video |
| US9591324B2 (en) | 2013-10-14 | 2017-03-07 | Qualcomm Incorporated | Systems and methods for separately defining dependencies for sub-layer based inter-layer prediction |
| US9681145B2 (en) | 2013-10-14 | 2017-06-13 | Qualcomm Incorporated | Systems and methods for inter-layer RPS derivation based on sub-layer reference prediction dependency |
| US10547834B2 (en) * | 2014-01-08 | 2020-01-28 | Qualcomm Incorporated | Support of non-HEVC base layer in HEVC multi-layer extensions |
| WO2015125489A1 (en) * | 2014-02-24 | 2015-08-27 | Sharp Kabushiki Kaisha | Restrictions on signaling |
| CN106464893B (en) | 2014-03-17 | 2019-12-03 | 诺基亚技术有限公司 | For Video coding and decoded device, method and computer program |
| WO2015194183A1 (en) * | 2014-06-18 | 2015-12-23 | Sharp Kabushiki Kaisha | Slice Type and Decoder Conformance |
| US9930342B2 (en) | 2014-06-20 | 2018-03-27 | Qualcomm Incorporated | Systems and methods for signaling hypothetical reference decoder parameters in a parameter set |
| GB2532420A (en) * | 2014-11-18 | 2016-05-25 | Sony Corp | Data encoding and decoding |
| US9781424B2 (en) * | 2015-01-19 | 2017-10-03 | Google Inc. | Efficient context handling in arithmetic coding |
| US10349067B2 (en) * | 2016-02-17 | 2019-07-09 | Qualcomm Incorporated | Handling of end of bitstream NAL units in L-HEVC file format and improvements to HEVC and L-HEVC tile tracks |
| CA3025466A1 (en) * | 2016-05-24 | 2017-11-30 | Sharp Kabushiki Kaisha | Systems and methods for signaling scalable video in a media application format |
| WO2019069857A1 (en) * | 2017-10-06 | 2019-04-11 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Encoding device, decoding device, encoding method, and decoding method |
| WO2019069987A1 (en) * | 2017-10-06 | 2019-04-11 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Encoding device, decoding device, encoding method, and decoding method |
| US11496761B2 (en) * | 2018-06-30 | 2022-11-08 | Sharp Kabushiki Kaisha | Systems and methods for signaling picture types of pictures included in coded video |
| US11245899B2 (en) * | 2019-09-22 | 2022-02-08 | Tencent America LLC | Method and system for single loop multilayer coding with subpicture partitioning |
| KR20220065804A (en) * | 2019-09-23 | 2022-05-20 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | Provides segment existence information |
| MX2022003561A (en) * | 2019-09-24 | 2022-06-14 | Huawei Tech Co Ltd | Scalable nesting sei message management. |
| EP4022917A4 (en) * | 2019-10-02 | 2022-11-30 | Beijing Bytedance Network Technology Co., Ltd. | Syntax for subpicture signaling in a video bitstream |
| BR112022006429A2 (en) * | 2019-10-07 | 2022-06-28 | Huawei Tech Co Ltd | REFERENCE IMAGE INPUT RESTRICTIONS BASED ON DPB SIZE |
| WO2021073630A1 (en) | 2019-10-18 | 2021-04-22 | Beijing Bytedance Network Technology Co., Ltd. | Syntax constraints in parameter set signaling of subpictures |
| US11582463B2 (en) | 2019-12-30 | 2023-02-14 | Tencent America LLC | Method for alignment across layers in coded video stream |
| WO2021164736A1 (en) * | 2020-02-19 | 2021-08-26 | Mediatek Inc. | Constraints for inter-layer referencing |
| EP4124032A4 (en) * | 2020-04-12 | 2023-05-31 | LG Electronics, Inc. | Device for transmitting point cloud data, method for transmitting point cloud data, device for receiving point cloud data, and method for receiving point cloud data |
| WO2022065799A1 (en) * | 2020-09-22 | 2022-03-31 | 엘지전자 주식회사 | Media file processing method and apparatus therefor |
| US20220232256A1 (en) * | 2021-01-08 | 2022-07-21 | Lemon Inc. | Video Decoder Initialization Information Signaling |
| IT202100010193A1 (en) | 2021-04-22 | 2022-10-22 | Gd Spa | GROUPING UNIT AND METHOD TO FORM A GROUP COMPOSED OF TWO WRAPS EACH CONTAINING A GROUP OF SMOKING ITEMS |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140087971A (en) * | 2012-12-26 | 2014-07-09 | 한국전자통신연구원 | Method and apparatus for image encoding and decoding using inter-prediction with multiple reference layers |
| KR20140092198A (en) * | 2013-01-07 | 2014-07-23 | 한국전자통신연구원 | Video Description for Scalable Coded Video Bitstream |
| US20140254681A1 (en) * | 2013-03-08 | 2014-09-11 | Nokia Corporation | Apparatus, a method and a computer program for video coding and decoding |
| US9473771B2 (en) * | 2013-04-08 | 2016-10-18 | Qualcomm Incorporated | Coding video data for an output layer set |
| US9756335B2 (en) * | 2013-07-02 | 2017-09-05 | Qualcomm Incorporated | Optimizations on inter-layer prediction signalling for multi-layer video coding |
| JP6352383B2 (en) * | 2013-07-14 | 2018-07-04 | シャープ株式会社 | Decoding method and decoding apparatus |
| KR20150009424A (en) * | 2013-07-15 | 2015-01-26 | 한국전자통신연구원 | Method and apparatus for image encoding and decoding using inter-layer prediction based on temporal sub-layer information |
-
2014
- 2014-10-14 EP EP14851550.5A patent/EP3056005A4/en not_active Withdrawn
- 2014-10-14 CN CN201480050754.6A patent/CN105556975A/en active Pending
- 2014-10-14 WO PCT/JP2014/005206 patent/WO2015052942A1/en active Application Filing
- 2014-10-14 US US15/028,072 patent/US20160261878A1/en not_active Abandoned
- 2014-10-14 JP JP2016521795A patent/JP6472442B2/en not_active Expired - Fee Related
-
2016
- 2016-10-28 HK HK16112455.5A patent/HK1224468A1/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2016538756A5 (en) | Decryption method | |
| JP2017513352A5 (en) | ||
| JP2016539544A5 (en) | ||
| RU2019137954A (en) | SIGNALING REFERENCE IMAGES | |
| JP2016521068A5 (en) | ||
| JP2015511437A5 (en) | ||
| MX2016011959A (en) | Derivation of end of sequence nal unit information for multi-layer bitstreams. | |
| MX359086B (en) | Use of specific hevc sei messages for multi-layer video codecs. | |
| MX359788B (en) | Use of hevc decoded picture hash sei messages for multi-layer codecs. | |
| JP2018523386A5 (en) | ||
| JP2015537420A5 (en) | ||
| RU2015117436A (en) | SYNTACTIC STRUCTURE OF THE PARAMETERS OF THE HYPOTHETIC REFERENCE DECODER | |
| JP2016167867A5 (en) | ||
| JP2015527813A5 (en) | ||
| JP2015506650A5 (en) | ||
| JP2016518763A5 (en) | ||
| JP2017507517A5 (en) | ||
| AR079869A1 (en) | VIDEO QUALITY ESTIMATION TECHNIQUE | |
| WO2013006114A3 (en) | Reference picture management for layered video | |
| JP2017510198A5 (en) | ||
| JP2015149774A5 (en) | ||
| JP2015536114A5 (en) | ||
| JP2015516698A5 (en) | Transmission method and decoding apparatus | |
| MY166191A (en) | Absolute or explicit reference picture signaling | |
| JP2016538753A5 (en) | Method for decoding video |